staging: wlan-ng: Replace data type declaration with variable of same type in p80211conv.c

sizeof(*var) instead of sizeof(struct XXX) is preferred.
Fix it in p80211conv.c file.
Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/wlan-ng/p80211conv.c

@@ -615,7 +615,7 @@ int p80211skb_rxmeta_attach(struct wlandevice *wlandev, struct sk_buff *skb)
 	}
 
 	/* Allocate the rxmeta */
-	rxmeta = kzalloc(sizeof(struct p80211_rxmeta), GFP_ATOMIC);
+	rxmeta = kzalloc(sizeof(*rxmeta), GFP_ATOMIC);
 
 	if (!rxmeta) {
 		netdev_err(wlandev->netdev,